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(NoModeL) G.-H. PERKINS, J. BOZORTH, & W. S. MARBLE.

Nail Feeder for Box Nailing; Machines.

Patented Nov. 23,1880.

M mad-7114 6! 7 Ga lo? MPEYERS, PHOTO LTHOGRAPHE U rrEn terns ATENT @rricn.

GEORGE H. PEBKINS JOHN BOZORTH, AND VILLIAM S. MARBLE, OF PHlLA- DELPHIA, PENNSYLVANIA; SAID BOZORTH AND MARBLE ASSIGNORS TO SAID PERKINS.

NAIL-FEEDER FOR BbX-NAILING MACHINES.

SPECIFICATION forming part of Letters Patent No. 234,803, dated November 23, 1880,

Application filed August 2, 1880.

To all whom it may concern Be it known that we, GEORGE E. PERKINS, J OHN BOZORTH, and WILLIAM S. MARBLE, all of Philadelphia, Pennsylvania, have invented an Improvement in Automatic 1 ail- Feeds for Box-N ailin g Machines, of which the following is a full, clear, and true description.

Our invention is especially designed for use in connection with such a box-nailin g machine as is typified in the Letters Patent No. 157,568, granted December S, 1874, to Edwin Beard, although it is applicable to other nailing-machines employing analogous nail-holder devices, and although it is likewise applicable to such box-nailing machines as embody in their construction nail'holders designed to be supplied with nails by hand.

In the accompanying drawings, Figure 1 is a rear elevation of our invention as applied to aBeard machine; Fig.2, a central side sectional elevation of the machine of Fig. 1 in the position of parts represented in said Fig. 1; Fig. 3, a view similar to Fig. 2, showing the position of parts during the action of our nail-feed; Fig. 4, a perspective detail of a nail-holder and nail-carrier, and Fig. 5 a perspective detail of one of the actuating-levers of the nail-carriers.

Similar letters of reference indicate correspondin g parts wherever used.

The Beard machine hereinbefore referred to consists, essentially, of a box-nailing apparatus in which the nail-plungers remain stationary, and in which the nail-holders, together with the box to be nailed, are caused to ascend against the stationary plungers, so as to cause the plungers to enter the nail-holders and in such manner drive the nails.

For a clear understanding of our invention the following general description of the Beard machine shown in the drawings will suffice for its comprehension by those not acquainted with it.

In the drawings, A represents the gate of the machine, the same being adapted, by suitable mechanism, to be raised and lowered in ways within the frame-work B.

Ois the table. affixed to the gate and rising with it. v

D are the nail-holders, supported on a nailholder bar, E, transversely secured to castings (N0 model.)

I F on either upper side of the gate. As the gate is caused to ascend, the nail-holders are caused to ascend with it.

G are the nail-driving plungers, corresponding in number to the nail-holders, and secured each within a plunger-carrier, H, which latter are supported upon the plunger-carrier bar I, set transversely and fixedlyin the head or up per portion of the frame.

J are guide-rods affixed to the forward portion of the nail-holders, and passing freely through sleeves K on the forward portion of the plunger-carriers.

As will be understood, the box L being in positionon the table, as shown in Fig. 2, and the table and gate being caused to ascend, the nail-holders will be raised up until their plungers are within them, and shall have driven home the nails which have been previously fed into said nail-holders.

Heretofore the supply or feed of these nailholders with the nails has been done by hand, and has been a laborious, uncertain, and dangerous method, as even those most skilled will 7 5 sometimes fail to supply eachv of the holders; hence it has resulted that the full quota of nails is not always driven, while at times the fingers of those employed to feed have been damaged by negligence in not feeding in suf- 8o ficient time before the ascent of the box, to remedy which disadvantages in this class of machines we have devised the automatic nailfeed device which constitutes the subject-matter of this invention, and which we will now proceed to describe.

Located at the rear portion of each plungercarrier is a nail-pocket, M, vertically disposed, of any suitable construction, and applied as is most convenient. Into these pockets enter o tubes N, which, under proper regulation, re ceive and supply to the pockets the nails to be driven. W'e find it convenient to employ in connection with our presentinvention, and as a means of regulating this supply of nails 5 to the nail-tubes N, the feeding mechanism invented by George H. Perkins and John Bozorth, and patented to them in and by Letters Patent No. 192,278, dated June 19, 1877, to which Letters Patent reference may be made. \Vhether the above patented mechanism or other mechanism he employed, or whether the nails be fed by hand, the requirementis, that a nail be supplied to each of these feedtubes simultaneously and one nail at a time. The feed'tubes enter the pockets as stated, and discharge their nails one by one into the pockets. The lower openings in the pockets are covered by a suitable stopper-bar, 0, (well shown in Figs. 1, 2, and 3,) extending the width of the machine beneath the pockets and hung upon the extremities ofswin ging rods P, keyed to a rock-shaft,Q,journaled in the head of the machine.

R is a trigger, also keyed to the rock-shaft, and acting upon its deflection to rock the rockshaft, oscillate the swin gin g-rods, and remove the stopper bar from beneath the pockets. Thus, for instance, in the position of parts represented in Fig. 2, an object striking the trigger R from below will expand the spiral spring S, which holds it down, throw the swinging bars to the right, and throw the stopper-bar from beneath the pockets, so as to open their lower orifices and permit the discharge of their nails.

T T are two curved rods, which serve as fulcra for the actuating-levers of the nail-carriers U. These rods are atfixed to the casting F upon the upper portion of the gate, and extend backward, as shown in Fig. 2, from either side of the same.

To each fulcrum is pivoted a lever, V, which is the actuating-lever of the nail-carriers, there being two of these levers, and the same being arranged to operate upon the ends of a nailcarrier bar, W', extending from side to side of the machine and passing through slots X in the nail-carriers.

Each nail-carrier, a good form of which is shown in Fig. 4,travels upon a carrier-way, Y, affixed to and projected backwardly from the nail-holders. The carriers are so arranged as to retain their position upon their ways and to be adapted to slide freely thereupon forward and backward under the influence of their actuating-levers, as hereinafter set forth. At the forward end of their throw the carriers U, which are perforated throughout, are brought into line above the nail-receiving openings in the nail-holders, so that the nails in the carriersdropintothenail-holders. Thelowerends of the actuating-levers are forked at Z, Fi 5, so as to embrace each a sliding box, (I, entered therein and secured upon the nail-carrier bar W, one box at each end thereof. The object of this device is mechanical, to enable the actuating-levers to take up their are movement upon the nail-carrier bar. The upper end of each of said levers is provided with africtionroll, I), which is entered within a camway, 0, one of which latter is constructed on either side of the upper frame-work. As the gate ascends, the fulcra T ascend with it, and in so doing cause the friction-rolls of the actuatinglevers to travel through their camways c, and thereby cause the deflection of the levers at their upper ends to the front of the machine, and at their lower ends to the rear of the machine, carrying back with them the nail-carrier bar, whereby as the nails are driven the nailcarriers are drawn away from the position they occupy in Fig. 2 backwardly upon their respective ways and into the position shown in Fig. 3, so that said carriers are caused to escape from beneath the plungers, and are brought into position below and contiguous to the pockets, as shown'in Fig. 3.

d is a trip secured to one of the fulcra and standing vertically therefrom. As the fulcra ascend, this trip encounters the trigger R and deflects it upward, thereby deflecting away the stoppenbar 0 from beneath the pockets at the same time that the nail-carriers have been, in the action of the machine, brought below and into conjunction with the nail-pockets,whereby the nails which have been previously retained in the pockets by the stopper-bar are permitted to drop simultai'ieously into the carriers. Upon the return of the gate the action is, of course, reversed, and the nail-carriers, with their contained nails, (supplied from the pockets, as above described,) are brought into the position shown in Fig. 2, or in line above the nail-holders, so as to discharge the nails which they have carried from the pockets direct into the nail-holders without the interposition of manual labor.

Having thus described our invention, we claim and desire to secure by Letters Patent of the United States 1. In a nailing-machine, the combination of one or more nail-holders, I), one or more nailpockets, M, one or more nail-carriers, U, and suitable mechanism whereby said nail-carriers are reciprocated from a pointbeneath the nailpockets, whence they are supplied with nails, to a point over the nail-holders, into which they discharge their nails, substantially as set forth.

2. As a device for securing the regular discharge of nails from the pockets, the combination of the stopper-bar 0, arranged as described, the trigger R, and the trip (1.

3. In a box-nailing machine or other nailingmachine, as a device for actuating the nailcarriers U upon the carrier-ways Y from in line beneath the nail-pockets M to in line above the nail-holders D, and for actuating said carriers from in line above the nail-holders to in line beneath the nail-pockets, the actuatinglevers V, pivoted to the gate and rising and falling with the same, connected at their lower ends with the nail-carrier bar V, and at their upper ends operated by the camway 0, substantially as shown and described.

In testimony whereof we have hereunto signed our names this 30th day of July, A. D. 1880.

GEORGE H. PERKINS. JOHN BOZORTH.

WILLIAM S. MARBLE.

In presence of- Gno. H. HOLTZMAN, Gno. H. CRUMBAOK.

ITO 

